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CVE-2026-45740

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.8 and 8.2.0, protobufjs could recurse without a depth limit while expanding nested JSON descriptors through Root.fromJSON() and Namespace.addJSON(). A crafted JSON descriptor with deeply nested namespace definitions could cause the JavaScript call stack to be exhausted during descriptor loading. This vulnerability is fixed in 7.5.8 and 8.2.0.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8ab02ea0ce7b27cfbc31b85e054a80d8deacb3ed659a473d546697d25f6b170f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"protobuf.js","vendor":"protobufjs","versions":[{"status":"affected","version":"< 7.5.8"},{"status":"affected","version":">= 8.0.0, < 8.2.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:38c48345efc0fd6640c48da7e8f87542f6d4935003980c1df1d95b87358e67fb · sha256:f7ea7ff1a26dd585… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:38c48345efc0fd6640c48da7e8f87542f6d4935003980c1df1d95b87358e67fb · sha256:f7ea7ff1a26dd585… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-674","description":"CWE-674: Uncontrolled Recursion","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:38c48345efc0fd6640c48da7e8f87542f6d4935003980c1df1d95b87358e67fb · sha256:f7ea7ff1a26dd585… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-jggg-4jg4-v7c6","tags":["x_refsource_CONFIRM"],"url":"https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-jggg-4jg4-v7c6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:38c48345efc0fd6640c48da7e8f87542f6d4935003980c1df1d95b87358e67fb · sha256:f7ea7ff1a26dd585… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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